N.Mac® Channel Twin Shaft Grinder
Full service in place for grinding a wide range of demanding solids in sewers
The N.Mac® channel twin shaft grinder crushes fragmenting large and solid particles in liquid media and impresses with its innovative FSIP® concept (Full Service in Place). It is ideal for a wide range of applications, from wastewater treatment to food and fruit residues.
This housing design allows being installed in sewers to crush impurities. In addition, the N.Mac® offers you the innovative FSIP® concept. Therefore, you can carry out the complete maintenance and the replacement of the cutting device without removing the entire grinder. This saves both time and money. Depending on the desired degree of crushing, numerous tooth combinations are available.
N.Mac® channel twin shaft grinder protects your system
The various cutter designs with three to eleven teeth can be exchanged quickly and easily, thanks to the modular design. This means that you can quickly determine the degree of shredding yourself. The different geometries of the robust cutter blocks enable the smooth shredding of various solids. Should a blockage nevertheless occur, you can solve it without dismantling the unit using the optional control system with reversal of the direction of rotation. This protects your system from a standstill and consequential damage.
Advantages
Technique
- Bearing and mechanical seal cartridges to protect the bearings
- Optional cleaning brush fro fibrous materials removes material in the gap between the blades
- Cutting devices in the cartridge system
- Modular design of the cutter blocks allows individual combinations
- Optional extended shaft for channel designs that allows the motor to be installed above the medium
- Retractable suspension lugs to facilitate disassembly
| Name | Flow rate (m³/h) | Approximate weight (kg) |
|---|---|---|
| N.Mac® 50C | 50 | 170 |
| N.Mac® 120C | 120 | 170 |
| N.Mac® 250C | 250 | 260 |
| N.Mac® 400C | 400 | 320 |
Further sizes and technical data on request.
Worldwide service and support for your pump and system
Our service and support do not end with the purchase. From consultation, spare parts and maintenance to the repair and modernisation of your pump - we support you right from the start.
Thanks to our worldwide service network, we are ready for you around the clock in case of an emergency.
Applications N.Mac® channel twin shaft grinder
FAQ grinding systems
Grinding systems are used to shred coarse solids, impurities or fibrous components before or within pump systems. They reliably protect pumps and plant technology from blockages, damage, and unplanned downtime.
Grinders significantly increase operational safety and plant availability. By reducing solid size, blockages are avoided, maintenance costs are reduced, and pump service life is extended.
Grinding systems can process a wide range of solids, including fibrous materials, plastics, textiles, organic components, wood, hygiene articles and lumps in sludge and wastewater. The exact suitability depends on the system’s design.
Typical applications include wastewater treatment, industrial processes, the chemical and food industries, and municipal and industrial sewage treatment plants. Wherever media containing solids are conveyed, grinders play an essential role in ensuring safe operation.
Grinders can be installed upstream of the pump, in the suction line, or directly in the pipes. The optimal positioning depends on the process conditions, the media composition, and the pump type.
Yes, grinding systems can usually be easily integrated into existing systems. The experts at NETZSCH Pumps & Systems will assist you in designing and selecting a suitable system for your existing infrastructure.
Grinding systems are robust and designed for reliable continuous operation. Maintenance requirements are low and primarily consist of regular visual inspections and replacement of wear parts, depending on the medium and operating conditions.
All relevant original spare parts for grinding systems from NETZSCH Pumps & Systems are available, including cutting tools, cutter rings, knives, seals, and other wear-related components. The spare parts are precisely matched to the system design and ensure reliable, safe operation.
The correct spare part can be identified by the machine number, serial number, or item number. Spare parts lists, technical drawings and the operating and maintenance instructions also provide support. Alternatively, the NETZSCH Pumps & Systems service team can provide expert advice on selecting the right original spare part.
Yes, with protection against blockages and mechanical damage, grinding systems significantly reduce unplanned downtime. They thus contribute to stable process control and higher plant availability.
Depending on the design and material selection, grinding systems can also be configured for abrasive or chemically demanding media. An application specific design ensures that material resistance and service life are optimally matched.
NETZSCH Pumps & Systems supports you from consultation and design to the integration of the proper grinding system. Based on your process data, we develop a solution that is optimally tailored to your application.
